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    National Health Museum
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    In this lab exercise, learners explore diffusion, cell membranes and particle size using beets and three alcohols. Generally, learners predict that smaller alcohols will permeate more quickly, and...

    $10 - $20 per group Ages 14 - 18 10 to 30 minutes
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    Make
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    In this activity, learners create a "Jam Jar Jet" based on Francois Reynst's discovery of a pulsejet engine, which uses one opening for both air intake and exhaust. Learners will be...

    $10 - $20 per student Ages 14 - adult 2 to 4 hours
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    Make
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    In this activity, learners make a small batch of biodiesel that will work in any diesel engine. Learners use an old juice bottle as a "reactor" vessel to chemically process vegetable oil...

    $10 - $20 per group Ages 14 - adult 1 to 7 days